Improvement in



mzzmzlmm P0553, 60mm,

No. v122,3?9..

Patented 1an. 2, 1872.

NrrED vS'IAfrns WILLIAM A. GUNN, OF LEXINGTON, KENTUCKY.

IMPRov-EMENT mtlRoN COLUMNS.

Specification forming part of Letters Patent No. 122,379, dated January 2, 187.2.

To all whom it may concern:

Be it known that I, WILLIAM A. GUNN, of Lexington, in the county of Fayette and State of Kentucky, have invented a new and useful Improvement in Iron and SteelPosts, Columns, Ste., and I do hereby declare that the following is a full, clear, and exact description there- I of, which Will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification, in Which- Y Figure l is a perspective view of an iron post illustrating my invention. Fig. 2 is a detail cross-section of the saine.

Similar letters of reference indicate corresponding parts.

My invention consists in an improved oon- `struction of metallic columns to givethe strength of the -double T-beam in two directions, While the necessity for cutting and riveting is greatly lessened.

AB G are double T-bars orbeams of Wroughtiron or steel. The bars or beams A C are placed as new and desire to secure by Letters Patent- A metallic column composed of three double T-bars, A B C, the first two parallel to each other, and the third placed centrally between them and at right angles thereto, as and for the purpose specified.

WILLIAM A. GUN N. l Witnesses:

' H. SHAW, Jr.,

R. GILL ELLIOTT. 4 (4) 

